Search Results

NASA's Aviation Safety Reporting System (ASRS) database was searched to identify problems in flight deck alerting design methodologies that should be considered during the design of data link alerting systems. Detailed analysis identified six major crew alerting problem areas: Distraction of Alert, Missed Alerts, Lack of Alerts, Alert Inhibit Logic, Non-Distinct Alerts, and Multiple Alerts. The problem areas resulted in a variety of flight technical errors (e.g., altitude and heading deviations, aborted takeoffs). These results are presented, and any pertinence to the design of a data link crew alerting scheme is cited.

The Aviation Safety Reporting System (ASRS) was searched to determine errors associated with the use of the party line (PL). Pilots occasionally misinterpret and/or receive inaccurate PL information; based on this information, they make incorrect and potentially dangerous decisions. Detailed analysis revealed two types of errors: those attributed to inaccurate PL information and those resulting from incorrect flightcrew actions based on the PL. Almost half the errors involving incorrect flightcrew actions were a result of executing unauthorized clearances because of confusion caused by similar call signs. Conclusions are drawn with respect to the loss of the PL in a data link environment.